$ git clone -n https://src.fedoraproject.org/rpms/perl-Compress-Raw-Bzip2.git /var/lib/mock/f39-build-1434924-31961/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Bzip2
Cloning into '/var/lib/mock/f39-build-1434924-31961/root/chroot_tmpdir/scmroot/perl-Compress-Raw-Bzip2'...
$ git fetch origin 1a97f56e1ae7f59cd2382d1862bdd128491d899d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Compress-Raw-Bzip2
 * [new ref]         1a97f56e1ae7f59cd2382d1862bdd128491d899d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a97f56 2.206 bump (rhbz#2225675)